Imaging Manifestations and Misdiagnosis Analysis of Six Cases of Bone Hydatid Disease

We retrospectively evaluated the clinical and imaging features of 6 patients with bone hydatid disease con-firmed by surgery and pathological examination. Among the 6 patients, 2 were infected with Echinococcosis granulosus metacestode and 4 were infected with E. multilocularis metacestode. The 2 cases with cystic echinococcosis were diag-nosed by computed tomographic (CT) examination, and other 4 cases were diagnosed by magnetic resonance (MR) im-aging. On the initial evaluation, 1 case each was misdiagnosed as a giant cell tumor or neurogenic tumor, and 2 were misdiagnosed as tuberculosis. The imaging manifestations of bone hydatid disease are complex, but most common find-ings include expansive osteolytic bone destruction, which may be associated with sclerosing edges or dead bone forma-tion, localized soft tissue masses, and vertebral lesions with wedge-shaped changes and spinal stenosis. Combining im-aging findings with the patient's epidemiological history and immunological examinations is of great help in improving the diagnosis and differential diagnosis of bone hydatid disease.